﻿/*!	r_alloc_system.h
	@brief	アロケータ
Copyright (c) 2009 Yuya Yamaguchi

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef _R_ALLOC_SYSTEM_H_
#define _R_ALLOC_SYSTEM_H_

#include "r_alloc_base.h"
#include "../util/r_util_singleton.h"

//! システムアロケータラッパー
/* プラットフォームに併せてラッパーを記述してください
このクラスはシステムによって一度だけインスタンス化されます
*/
class cRAllocSystem : public cRAllocBase
{
	RSINGLETON_DECLARE ( cRAllocSystem )
private:
	//! コンストラクタ
	cRAllocSystem ( void );
	//! デストラクタ
	virtual ~cRAllocSystem ( void );
public:
	//! システムによりアプリケーション開始時に一度だけ呼ばれる
	/*!
	*/
	static	void				create ( void );
	//! システムによりアプリケーション終了時に一度だけ呼ばれる
	/*!
	*/
	static	void				destroy ( void );
public:
	//! メモリ領域確保
	virtual void	*malloc ( r_size size );
	//! メモリ領域再確保
	virtual void	*realloc ( void *pt, r_size size );
	//! メモリ領域開放
	virtual void	free ( void *pt );
private:
	//! メモリ領域確保(プラットフォーム
	void*	_malloc ( r_size size );
	//! メモリ領域再確保(プラットフォーム
	void*	_realloc ( void *pt, r_size size );
	//! メモリ領域開放(プラットフォーム
	void	_free ( void *pt );
};


#endif // _R_ALLOC_SYSTEM_H_
